#259BB3#259BB3

#259BB3 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.8% C 0.104 H 215.2°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#259BB3
RGB	rgb(37, 155, 179)
HSL	hsl(190, 66%, 42%)
HSV	hsv(190, 79%, 70%)
CMYK	cmyk(79.3%, 13.4%, 0%, 29.8%)
CIE-LAB	lab(59.06, -23.09, -21.51)
CIE-LCH	lch(59.06, 31.56, 222.97°)
OKLab	oklab(63.78% -0.085 -0.0601)
OKLCH	oklch(63.78% 0.104 215.2)
XYZ	xyz(20.6175, 27.0881, 46.7810)
Luminance	0.2709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259BB3 #B33D25

analogous

#25B384 #259BB3 #2554B3

triadic

#259BB3 #B3259B #9BB325

tetradic

#259BB3 #8425B3 #B33D25 #54B325

square

#259BB3 #8425B3 #B33D25 #54B325

split-complementary

#259BB3 #B32554 #B38425

monochromatic

#10434E #1B6F80 #259BB3 #3EBDD7 #71CFE2

Accessibility & contrast

On white

3.27

#259BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#259BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259BB3

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259BB3	#FFFFFF	#000000	##000000
##259BB3	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A96B4

Deuteranopia (green-blind)

#7788B3

Tritanopia (blue-blind)

#00A4A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #259bb3;
/* rgb */ color: rgb(37, 155, 179);
/* oklch */ color: oklch(63.8% 0.104 215.2);

Tailwind

colors: {
  custom: {
    50: '#78b8c9',
    500: '#259bb3',
    950: '#000000',
  },
}

SCSS

$custom: #259bb3;
$custom-light: #78b8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#259bb3",
  "rgb": {
    "r": 37,
    "g": 155,
    "b": 179
  },
  "hsl": {
    "h": 190.141,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.63784,
    "c": 0.10409,
    "h": 215.2
  },
  "luminance": 0.27091
}

Semantic roles & 50–950 ramp

primary

#259BB3

secondary

#C87B6B

accent

#5C3FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #259BB3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →